View source: R/alpha.hull.poly.R
alpha.hull.poly | R Documentation |
Alpha hull process
alpha.hull.poly(
XY,
alpha = 1,
buff = 0.1,
mode = "spheroid",
proj_type = "cea"
)
XY |
data.frame coordinates |
alpha |
integer if mode planar, in kilometers, if mode spheroid in decimal degrees |
buff |
numeric |
mode |
character string either 'spheroid' or 'planar'. By default 'spheroid' |
proj_type |
crs |
The functions ahull_to_SPLDF and alpha.hull.poly were originally posted in the website https://casoilresource.lawr.ucdavis.edu/software/r-advanced-statistical-package/working-spatial-data/converting-alpha-shapes-sp-objects/ in a now broken link. It is also used in functions written by David Bucklin, see https://github.com/dnbucklin/r_movement_homerange
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